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Lexington, MA Weather


Lexington, MA climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 20's.

The warmest month of the year is July with an average maximum temperature of 82.70 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 15.70 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 22 degrees Fahrenheit, and moderate during winter with an average difference of 20 degrees Fahrenheit.

The annual average precipitation at Lexington is 46.95 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is November with an average rainfall of 4.39 Inches.

Weather Data

Weather Warnings

Flood watch in effect from late tonight through Tuesday afternoon .

Current Conditions

(Updated: 7:56 AM EDT MON MAR 22 2010)

FOG and MIST Fog And Mist, 41°F Humidity: 89% Dewpoint: 38°F
Wind Speed: CALM Heat Index: 41°F
Barometer: 30.09 in. Wind Chill: 41°F

Weather Forecast

(Generated: 7:37 AM EDT MON MAR 22 2010)
Hi: 49°F Today: Cloudy. Showers likely...Mainly this afternoon. Highs in the upper 40s. Northeast winds 5 to 10 mph. Chance of rain 70 percent.
Lo: 41°F
Hi: 50°F Tuesday: Rain. Patchy fog. Highs around 50. North winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.
Lo: 39°F
Hi: 51°F Wednesday: Mostly cloudy with showers likely in the morning... Then partly sunny in the afternoon. Highs in the lower 50s. Northwest winds 15 to 20 mph with gusts up to 40 mph. Chance of rain 60 percent.
Lo: 31°F
Hi: 55°F Thursday: Mostly clear. Lows in the lower 30s. Highs in the mid 50s.
Lo: 25°F
Hi: 41°F Friday: Mostly clear. Highs in the lower 40s. Lows in the mid 20s.
Lo: 31°F
Hi: 45°F Saturday: Partly cloudy. Highs in the mid 40s. Lows in the lower 30s.
Lo: 31°F

Moon, Sunrise and Sunset

Waxing Gibbous Moon Moon Phase: Waxing Gibbous Moon Civil Twilight:
6:16 AM EDT
Sunrise:
6:44 AM EDT
Sunset:
6:59 PM EDT
Civil Twilight:
7:27 PM EDT

Normal Climate

Normal Temperatures

(BEDFORD Weather station, 3.60 miles from Lexington)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 35.0 38.0 46.8 58.0 69.4 77.5 82.7 80.7 72.4 61.7 50.7 39.6 59.4
Mean °F 25.4 28.1 36.7 46.9 57.6 66.1 71.5 69.8 61.3 50.4 41.0 30.6 48.8
Min °F 15.7 18.2 26.6 35.8 45.8 54.7 60.3 58.9 50.2 39.0 31.2 21.5 38.2

Normal Precipitation

(BEDFORD Weather station, 3.60 miles from Lexington)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 4.24 3.33 4.21 3.99 3.76 3.61 3.83 3.54 3.84 4.14 4.39 4.07 46.95